百度翻译

今天上了武老师的课，学习了百度的翻译接口，要求结合GUI界面实现中英文的互译。

但是不知道什么原因一直显示申请token码无用和过期，所以今天进度不是很大，等明天在解决。

package com.example;

import okhttp3.*;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.*;

class Sample {
    public static final String API_KEY = "42m0dnvKnthcV2hit4hX3fXy";
    public static final String SECRET_KEY = "ieC8ms9Wl57BLqMGzitDkv5j7HnGZdRv";

    static final OkHttpClient HTTP_CLIENT = new OkHttpClient().newBuilder().build();

    public static void main(String []args) throws IOException{
        MediaType mediaType = MediaType.parse("application/json");
        RequestBody body = RequestBody.create(mediaType, "{\"from\":\"en\",\"to\":\"zh\",\"q\":\"hello\"}");
        Request request = new Request.Builder()
                .url("https://aip.baidubce.com/rpc/2.0/mt/texttrans/v1?access_token=" + getAccessToken())
                .method("POST", body)
                .addHeader("Content-Type", "application/json")
                .addHeader("Accept", "application/json")
                .build();
        Response response = HTTP_CLIENT.newCall(request).execute();
        System.out.println(response.body().string());

    }


    /**
     * 从用户的AK，SK生成鉴权签名（Access Token）
     *
     * @return 鉴权签名（Access Token）
     * @throws IOException IO异常
     */
    static String getAccessToken() throws IOException {
        MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
        RequestBody body = RequestBody.create(mediaType, "grant_type=client_credentials&client_id=" + API_KEY
                + "&client_secret=" + SECRET_KEY);
        Request request = new Request.Builder()
                .url("https://aip.baidubce.com/oauth/2.0/token")
                .method("POST", body)
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();
        Response response = HTTP_CLIENT.newCall(request).execute();
        try {
            return new JSONObject(response.body().string()).getString("access_token");
        } catch (JSONException e) {
            throw new RuntimeException(e);
        }
    }

}